... galvanizing,you can play a role in preventing oxidation. Steel Bar GratingProducts: Steel grid plate commonly used carbon steel production, appearance ... Dutch, often 30MM, 40MM 2 kinds. Bar pitch: the center distance between two adjacent bar is usually 50MM, 100, two types according ... : Due to the ventilation is good, the event of wind drag is small, to reduce wind damage. Design is simple: No ...